{{ $supported := $.Page.Params.supported_installers }}
<ul>
  {{ range $supported }}
  {{ $page := index (where site.RegularPages ".Params.short" "eq" .) 0 }}
  {{ if eq $page nil }}
  {{ errorf "Error in supported-installers shortcode on %s: No page with a short title of %s found" $.Page.File.Path . }}
  {{ end }}
  <li>
    <a href="{{ $page.RelPermalink }}">
      {{ $page.Params.short }}
    </a>
  </li>
  {{ end }}
</ul>